text: /*****************************************************************************
   *                                                                           *
   * File: cxgb2.c                                                             *
   * $Revision: 1.25 $                                                         *
   * $Date: 2005/06/22 00:43:25 $                                              *
   * Description:                                                              *
   *  Chelsio 10Gb Ethernet Driver.                                            *
   *                                                                           *
   * This program is free software; you can redistribute it and/or modify      *
   * it under the terms of the GNU General Public License, version 2, as       *
   * published by the Free Software Foundation.                                *
   *                                                                           *
   * You should have received a copy of the GNU General Public License along   *
   * with this program; if not, write to the Free Software Foundation, Inc.,   *
   * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
   *                                                                           *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
   * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
   * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
   *                                                                           *
   * http://www.chelsio.com                                                    *
   *                                                                           *
   * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
   * All rights reserved.                                                      *
   *                                                                           *
   * Maintainers: maintainers@chelsio.com                                      *
   *                                                                           *
   * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
   *          Tina Yang               <tainay@chelsio.com>                     *
   *          Felix Marti             <felix@chelsio.com>                      *
   *          Scott Bardone           <sbardone@chelsio.com>                   *
   *          Kurt Ottaway            <kottaway@chelsio.com>                   *
   *          Frank DiMambro          <frank@chelsio.com>                      *
   *                                                                           *
   * History:                                                                  *
   *                                                                           *
   ****************************************************************************/
  
  #include "common.h"
  #include <linux/module.h>
  #include <linux/init.h>
  #include <linux/pci.h>
  #include <linux/netdevice.h>
  #include <linux/etherdevice.h>
  #include <linux/if_vlan.h>
  #include <linux/mii.h>
  #include <linux/sockios.h>
  #include <linux/dma-mapping.h>
  #include <asm/uaccess.h>
  
  #include "cpl5_cmd.h"
  #include "regs.h"
  #include "gmac.h"
  #include "cphy.h"
  #include "sge.h"
  #include "tp.h"
  #include "espi.h"
  #include "elmer0.h"
  
  #include <linux/workqueue.h>
  
  static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
  {
  	schedule_delayed_work(&ap->stats_update_task, secs * HZ);
  }
  
  static inline void cancel_mac_stats_update(struct adapter *ap)
  {
  	cancel_delayed_work(&ap->stats_update_task);
  }
  
  #define MAX_CMDQ_ENTRIES	16384
  #define MAX_CMDQ1_ENTRIES	1024
  #define MAX_RX_BUFFERS		16384
  #define MAX_RX_JUMBO_BUFFERS	16384
  #define MAX_TX_BUFFERS_HIGH	16384U
  #define MAX_TX_BUFFERS_LOW	1536U
  #define MAX_TX_BUFFERS		1460U
  #define MIN_FL_ENTRIES		32
  
  #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
  			 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
  			 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
  
  /*
   * The EEPROM is actually bigger but only the first few bytes are used so we
   * only report those.
   */
  #define EEPROM_SIZE 32
  
  MODULE_DESCRIPTION(DRV_DESCRIPTION);
  MODULE_AUTHOR("Chelsio Communications");
  MODULE_LICENSE("GPL");
  
  static int dflt_msg_enable = DFLT_MSG_ENABLE;
  
  module_param(dflt_msg_enable, int, 0);
  MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
  
  #define HCLOCK 0x0
  #define LCLOCK 0x1
  
  /* T1 cards powersave mode */
  static int t1_clock(struct adapter *adapter, int mode);
  static int t1powersave = 1;	/* HW default is powersave mode. */
  
  module_param(t1powersave, int, 0);
  MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
  
  static int disable_msi = 0;
  module_param(disable_msi, int, 0);
  MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
  
  static const char pci_speed[][4] = {
  	"33", "66", "100", "133"
  };
  
  /*
   * Setup MAC to receive the types of packets we want.
   */
  static void t1_set_rxmode(struct net_device *dev)
  {
  	struct adapter *adapter = dev->priv;
  	struct cmac *mac = adapter->port[dev->if_port].mac;
  	struct t1_rx_mode rm;
  
  	rm.dev = dev;
  	rm.idx = 0;
  	rm.list = dev->mc_list;
  	mac->ops->set_rx_mode(mac, &rm);
  }
  
  static void link_report(struct port_info *p)
  {
  	if (!netif_carrier_ok(p->dev))
  		printk(KERN_INFO "%s: link down\n", p->dev->name);
  	else {
  		const char *s = "10Mbps";
  
  		switch (p->link_config.speed) {
  			case SPEED_10000: s = "10Gbps"; break;
  			case SPEED_1000:  s = "1000Mbps"; break;
  			case SPEED_100:   s = "100Mbps"; break;
  		}
  
  		printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
  		       p->dev->name, s,
  		       p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
  	}
  }
  
  void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
  			int speed, int duplex, int pause)
  {
  	struct port_info *p = &adapter->port[port_id];
  
  	if (link_stat != netif_carrier_ok(p->dev)) {
  		if (link_stat)
  			netif_carrier_on(p->dev);
  		else
  			netif_carrier_off(p->dev);
  		link_report(p);
  
  		/* multi-ports: inform toe */
  		if ((speed > 0) && (adapter->params.nports > 1)) {
  			unsigned int sched_speed = 10;
  			switch (speed) {
  			case SPEED_1000:
  				sched_speed = 1000;
  				break;
  			case SPEED_100:
  				sched_speed = 100;
  				break;
  			case SPEED_10:
  				sched_speed = 10;
  				break;
  			}
  			t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
  		}
  	}
  }
  
  static void link_start(struct port_info *p)
  {
  	struct cmac *mac = p->mac;
  
  	mac->ops->reset(mac);
  	if (mac->ops->macaddress_set)
  		mac->ops->macaddress_set(mac, p->dev->dev_addr);
  	t1_set_rxmode(p->dev);
  	t1_link_start(p->phy, mac, &p->link_config);
  	mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
  }
  
  static void enable_hw_csum(struct adapter *adapter)
  {
  	if (adapter->flags & TSO_CAPABLE)
  		t1_tp_set_ip_checksum_offload(adapter->tp, 1);	/* for TSO only */
  	if (adapter->flags & UDP_CSUM_CAPABLE)
  		t1_tp_set_udp_checksum_offload(adapter->tp, 1);
  	t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
  }
  
  /*
   * Things to do upon first use of a card.
   * This must run with the rtnl lock held.
   */
  static int cxgb_up(struct adapter *adapter)
  {
  	int err = 0;
  
  	if (!(adapter->flags & FULL_INIT_DONE)) {
  		err = t1_init_hw_modules(adapter);
  		if (err)
  			goto out_err;
  
  		enable_hw_csum(adapter);
  		adapter->flags |= FULL_INIT_DONE;
  	}
  
  	t1_interrupts_clear(adapter);
  
  	adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
  	err = request_irq(adapter->pdev->irq, t1_interrupt,
  			  adapter->params.has_msi ? 0 : IRQF_SHARED,
  			  adapter->name, adapter);
  	if (err) {
  		if (adapter->params.has_msi)
  			pci_disable_msi(adapter->pdev);
  
  		goto out_err;
  	}
  
  	t1_sge_start(adapter->sge);
  	t1_interrupts_enable(adapter);
  out_err:
  	return err;
  }
  
  /*
   * Release resources when all the ports have been stopped.
   */
  static void cxgb_down(struct adapter *adapter)
  {
  	t1_sge_stop(adapter->sge);
  	t1_interrupts_disable(adapter);
  	free_irq(adapter->pdev->irq, adapter);
  	if (adapter->params.has_msi)
  		pci_disable_msi(adapter->pdev);
  }
  
  static int cxgb_open(struct net_device *dev)
  {
  	int err;
  	struct adapter *adapter = dev->priv;
  	int other_ports = adapter->open_device_map & PORT_MASK;
  
  	if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
  		return err;
  
  	__set_bit(dev->if_port, &adapter->open_device_map);
  	link_start(&adapter->port[dev->if_port]);
  	netif_start_queue(dev);
  	if (!other_ports && adapter->params.stats_update_period)
  		schedule_mac_stats_update(adapter,
  					  adapter->params.stats_update_period);
  	return 0;
  }
  
  static int cxgb_close(struct net_device *dev)
  {
  	struct adapter *adapter = dev->priv;
  	struct port_info *p = &adapter->port[dev->if_port];
  	struct cmac *mac = p->mac;
  
  	netif_stop_queue(dev);
  	mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
  	netif_carrier_off(dev);
  
  	clear_bit(dev->if_port, &adapter->open_device_map);
  	if (adapter->params.stats_update_period &&
  	    !(adapter->open_device_map & PORT_MASK)) {
  		/* Stop statistics accumulation. */
  		smp_mb__after_clear_bit();
  		spin_lock(&adapter->work_lock);   /* sync with update task */
  		spin_unlock(&adapter->work_lock);
  		cancel_mac_stats_update(adapter);
  	}
  
  	if (!adapter->open_device_map)
  		cxgb_down(adapter);
  	return 0;
  }
  
  static struct net_device_stats *t1_get_stats(struct net_device *dev)
  {
  	struct adapter *adapter = dev->priv;
  	struct port_info *p = &adapter->port[dev->if_port];
  	struct net_device_stats *ns = &p->netstats;
  	const struct cmac_statistics *pstats;
  
  	/* Do a full update of the MAC stats */
  	pstats = p->mac->ops->statistics_update(p->mac,
  						MAC_STATS_UPDATE_FULL);
  
  	ns->tx_packets = pstats->TxUnicastFramesOK +
  		pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
  
  	ns->rx_packets = pstats->RxUnicastFramesOK +
  		pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
  
  	ns->tx_bytes = pstats->TxOctetsOK;
  	ns->rx_bytes = pstats->RxOctetsOK;
  
  	ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
  		pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
  	ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
  		pstats->RxFCSErrors + pstats->RxAlignErrors +
  		pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
  		pstats->RxSymbolErrors + pstats->RxRuntErrors;
  
  	ns->multicast  = pstats->RxMulticastFramesOK;
  	ns->collisions = pstats->TxTotalCollisions;
  
  	/* detailed rx_errors */
  	ns->rx_length_errors = pstats->RxFrameTooLongErrors +
  		pstats->RxJabberErrors;
  	ns->rx_over_errors   = 0;
  	ns->rx_crc_errors    = pstats->RxFCSErrors;
  	ns->rx_frame_errors  = pstats->RxAlignErrors;
  	ns->rx_fifo_errors   = 0;
  	ns->rx_missed_errors = 0;
  
  	/* detailed tx_errors */
  	ns->tx_aborted_errors   = pstats->TxFramesAbortedDueToXSCollisions;
  	ns->tx_carrier_errors   = 0;
  	ns->tx_fifo_errors      = pstats->TxUnderrun;
  	ns->tx_heartbeat_errors = 0;
  	ns->tx_window_errors    = pstats->TxLateCollisions;
  	return ns;
  }
  
  static u32 get_msglevel(struct net_device *dev)
  {
  	struct adapter *adapter = dev->priv;
  
  	return adapter->msg_enable;
  }
  
  static void set_msglevel(struct net_device *dev, u32 val)
  {
  	struct adapter *adapter = dev->priv;
  
  	adapter->msg_enable = val;
  }
  
  static char stats_strings[][ETH_GSTRING_LEN] = {
  	"TxOctetsOK",
  	"TxOctetsBad",
  	"TxUnicastFramesOK",
  	"TxMulticastFramesOK",
  	"TxBroadcastFramesOK",
  	"TxPauseFrames",
  	"TxFramesWithDeferredXmissions",
  	"TxLateCollisions",
  	"TxTotalCollisions",
  	"TxFramesAbortedDueToXSCollisions",
  	"TxUnderrun",
  	"TxLengthErrors",
  	"TxInternalMACXmitError",
  	"TxFramesWithExcessiveDeferral",
  	"TxFCSErrors",
  	"TxJumboFramesOk",
  	"TxJumboOctetsOk",
  
  	"RxOctetsOK",
  	"RxOctetsBad",
  	"RxUnicastFramesOK",
  	"RxMulticastFramesOK",
  	"RxBroadcastFramesOK",
  	"RxPauseFrames",
  	"RxFCSErrors",
  	"RxAlignErrors",
  	"RxSymbolErrors",
  	"RxDataErrors",
  	"RxSequenceErrors",
  	"RxRuntErrors",
  	"RxJabberErrors",
  	"RxInternalMACRcvError",
  	"RxInRangeLengthErrors",
  	"RxOutOfRangeLengthField",
  	"RxFrameTooLongErrors",
  	"RxJumboFramesOk",
  	"RxJumboOctetsOk",
  
  	/* Port stats */
  	"RxCsumGood",
  	"TxCsumOffload",
  	"TxTso",
  	"RxVlan",
  	"TxVlan",
  	"TxNeedHeadroom",
  
  	/* Interrupt stats */
  	"rx drops",
  	"pure_rsps",
  	"unhandled irqs",
  	"respQ_empty",
  	"respQ_overflow",
  	"freelistQ_empty",
  	"pkt_too_big",
  	"pkt_mismatch",
  	"cmdQ_full0",
  	"cmdQ_full1",
  
  	"espi_DIP2ParityErr",
  	"espi_DIP4Err",
  	"espi_RxDrops",
  	"espi_TxDrops",
  	"espi_RxOvfl",
  	"espi_ParityErr"
  };
  
  #define T2_REGMAP_SIZE (3 * 1024)
  
  static int get_regs_len(struct net_device *dev)
  {
  	return T2_REGMAP_SIZE;
  }
  
  static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
  {
  	struct adapter *adapter = dev->priv;
  
  	strcpy(info->driver, DRV_NAME);
  	strcpy(info->version, DRV_VERSION);
  	strcpy(info->fw_version, "N/A");
  	strcpy(info->bus_info, pci_name(adapter->pdev));
  }
  
  static int get_stats_count(struct net_device *dev)
  {
  	return ARRAY_SIZE(stats_strings);
  }
  
  static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
  {
  	if (stringset == ETH_SS_STATS)
  		memcpy(data, stats_strings, sizeof(stats_strings));
  }
  
  static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
  		      u64 *data)
  {
  	struct adapter *adapter = dev->priv;
  	struct cmac *mac = adapter->port[dev->if_port].mac;
  	const struct cmac_statistics *s;
  	const struct sge_intr_counts *t;
  	struct sge_port_stats ss;
  
  	s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
  	t = t1_sge_get_intr_counts(adapter->sge);
  	t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
  
  	*data++ = s->TxOctetsOK;
  	*data++ = s->TxOctetsBad;
  	*data++ = s->TxUnicastFramesOK;
  	*data++ = s->TxMulticastFramesOK;
  	*data++ = s->TxBroadcastFramesOK;
  	*data++ = s->TxPauseFrames;
  	*data++ = s->TxFramesWithDeferredXmissions;
  	*data++ = s->TxLateCollisions;
  	*data++ = s->TxTotalCollisions;
  	*data++ = s->TxFramesAbortedDueToXSCollisions;
  	*data++ = s->TxUnderrun;
  	*data++ = s->TxLengthErrors;
  	*data++ = s->TxInternalMACXmitError;
  	*data++ = s->TxFramesWithExcessiveDeferral;
  	*data++ = s->TxFCSErrors;
  	*data++ = s->TxJumboFramesOK;
  	*data++ = s->TxJumboOctetsOK;
  
  	*data++ = s->RxOctetsOK;
  	*data++ = s->RxOctetsBad;
  	*data++ = s->RxUnicastFramesOK;
  	*data++ = s->RxMulticastFramesOK;
  	*data++ = s->RxBroadcastFramesOK;
  	*data++ = s->RxPauseFrames;
  	*data++ = s->RxFCSErrors;
  	*data++ = s->RxAlignErrors;
  	*data++ = s->RxSymbolErrors;
  	*data++ = s->RxDataErrors;
  	*data++ = s->RxSequenceErrors;
  	*data++ = s->RxRuntErrors;
  	*data++ = s->RxJabberErrors;
  	*data++ = s->RxInternalMACRcvError;
  	*data++ = s->RxInRangeLengthErrors;
  	*data++ = s->RxOutOfRangeLengthField;
  	*data++ = s->RxFrameTooLongErrors;
  	*data++ = s->RxJumboFramesOK;
  	*data++ = s->RxJumboOctetsOK;
  
  	*data++ = ss.rx_cso_good;
  	*data++ = ss.tx_cso;
  	*data++ = ss.tx_tso;
  	*data++ = ss.vlan_xtract;
  	*data++ = ss.vlan_insert;
  	*data++ = ss.tx_need_hdrroom;
  
  	*data++ = t->rx_drops;
  	*data++ = t->pure_rsps;
  	*data++ = t->unhandled_irqs;
  	*data++ = t->respQ_empty;
  	*data++ = t->respQ_overflow;
  	*data++ = t->freelistQ_empty;
  	*data++ = t->pkt_too_big;
  	*data++ = t->pkt_mismatch;
  	*data++ = t->cmdQ_full[0];
  	*data++ = t->cmdQ_full[1];
  
  	if (adapter->espi) {
  		const struct espi_intr_counts *e;
  
  		e = t1_espi_get_intr_counts(adapter->espi);
  		*data++ = e->DIP2_parity_err;
  		*data++ = e->DIP4_err;
  		*data++ = e->rx_drops;
  		*data++ = e->tx_drops;
  		*data++ = e->rx_ovflw;
  		*data++ = e->parity_err;
  	}
  }
  
  static inline void reg_block_dump(struct adapter *ap, void *buf,
  				  unsigned int start, unsigned int end)
  {
  	u32 *p = buf + start;
  
  	for ( ; start <= end; start += sizeof(u32))
  		*p++ = readl(ap->regs + start);
  }
  
  static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
  		     void *buf)
  {
  	struct adapter *ap = dev->priv;
  
  	/*
  	 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
  	 */
  	regs->version = 2;
  
  	memset(buf, 0, T2_REGMAP_SIZE);
  	reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
  	reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
  	reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
  	reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
  	reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
  	reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
  	reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
  	reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
  	reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
  	reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
  }
  
  static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  {
  	struct adapter *adapter = dev->priv;
  	struct port_info *p = &adapter->port[dev->if_port];
  
  	cmd->supported = p->link_config.supported;
  	cmd->advertising = p->link_config.advertising;
  
  	if (netif_carrier_ok(dev)) {
  		cmd->speed = p->link_config.speed;
  		cmd->duplex = p->link_config.duplex;
  	} else {
  		cmd->speed = -1;
  		cmd->duplex = -1;
  	}
  
  	cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
  	cmd->phy_address = p->phy->addr;
  	cmd->transceiver = XCVR_EXTERNAL;
  	cmd->autoneg = p->link_config.autoneg;
  	cmd->maxtxpkt = 0;
  	cmd->maxrxpkt = 0;
  	return 0;
  }
  
  static int speed_duplex_to_caps(int speed, int duplex)
  {
  	int cap = 0;
  
  	switch (speed) {
  	case SPEED_10:
  		if (duplex == DUPLEX_FULL)
  			cap = SUPPORTED_10baseT_Full;
  		else
  			cap = SUPPORTED_10baseT_Half;
  		break;
  	case SPEED_100:
  		if (duplex == DUPLEX_FULL)
  			cap = SUPPORTED_100baseT_Full;
  		else
  			cap = SUPPORTED_100baseT_Half;
  		break;
  	case SPEED_1000:
  		if (duplex == DUPLEX_FULL)
  			cap = SUPPORTED_1000baseT_Full;
  		else
  			cap = SUPPORTED_1000baseT_Half;
  		break;
  	case SPEED_10000:
  		if (duplex == DUPLEX_FULL)
  			cap = SUPPORTED_10000baseT_Full;
  	}
  	return cap;
  }
  
  #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
  		      ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
  		      ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
  		      ADVERTISED_10000baseT_Full)
  
  static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  {
  	struct adapter *adapter = dev->priv;
  	struct port_info *p = &adapter->port[dev->if_port];
  	struct link_config *lc = &p->link_config;
  
  	if (!(lc->supported & SUPPORTED_Autoneg))
  		return -EOPNOTSUPP;             /* can't change speed/duplex */
  
  	if (cmd->autoneg == AUTONEG_DISABLE) {
  		int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
  
  		if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
  			return -EINVAL;
  		lc->requested_speed = cmd->speed;
  		lc->requested_duplex = cmd->duplex;
  		lc->advertising = 0;
  	} else {
  		cmd->advertising &= ADVERTISED_MASK;
  		if (cmd->advertising & (cmd->advertising - 1))
  			cmd->advertising = lc->supported;
  		cmd->advertising &= lc->supported;
  		if (!cmd->advertising)
  			return -EINVAL;
  		lc->requested_speed = SPEED_INVALID;
  		lc->requested_duplex = DUPLEX_INVALID;
  		lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
  	}
  	lc->autoneg = cmd->autoneg;
  	if (netif_running(dev))
  		t1_link_start(p->phy, p->mac, lc);
  	return 0;
  }
  
  static void get_pauseparam(struct net_device *dev,
  			   struct ethtool_pauseparam *epause)
  {
  	struct adapter *adapter = dev->priv;
  	struct port_info *p = &adapter->port[dev->if_port];
  
  	epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
  	epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
  	epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
  }
  
  static int set_pauseparam(struct net_device *dev,
  			  struct ethtool_pauseparam *epause)
  {
  	struct adapter *adapter = dev->priv;
  	struct port_info *p = &adapter->port[dev->if_port];
  	struct link_config *lc = &p->link_config;
  
  	if (epause->autoneg == AUTONEG_DISABLE)
  		lc->requested_fc = 0;
  	else if (lc->supported & SUPPORTED_Autoneg)
  		lc->requested_fc = PAUSE_AUTONEG;
  	else
  		return -EINVAL;
  
  	if (epause->rx_pause)
  		lc->requested_fc |= PAUSE_RX;
  	if (epause->tx_pause)
  		lc->requested_fc |= PAUSE_TX;
  	if (lc->autoneg == AUTONEG_ENABLE) {
  		if (netif_running(dev))
  			t1_link_start(p->phy, p->mac, lc);
  	} else {
  		lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
  		if (netif_running(dev))
  			p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
  							 lc->fc);
  	}
  	return 0;
  }
  
  static u32 get_rx_csum(struct net_device *dev)
  {
  	struct adapter *adapter = dev->priv;
  
  	return (adapter->flags & RX_CSUM_ENABLED) != 0;
  }
  
  static int set_rx_csum(struct net_device *dev, u32 data)
  {
  	struct adapter *adapter = dev->priv;
  
  	if (data)
  		adapter->flags |= RX_CSUM_ENABLED;
  	else
  		adapter->flags &= ~RX_CSUM_ENABLED;
  	return 0;
  }
  
  static int set_tso(struct net_device *dev, u32 value)
  {
  	struct adapter *adapter = dev->priv;
  
  	if (!(adapter->flags & TSO_CAPABLE))
  		return value ? -EOPNOTSUPP : 0;
  	return ethtool_op_set_tso(dev, value);
  }
  
  static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
  {
  	struct adapter *adapter = dev->priv;
  	int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
  
  	e->rx_max_pending = MAX_RX_BUFFERS;
  	e->rx_mini_max_pending = 0;
  	e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
  	e->tx_max_pending = MAX_CMDQ_ENTRIES;
  
  	e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
  	e->rx_mini_pending = 0;
  	e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
  	e->tx_pending = adapter->params.sge.cmdQ_size[0];
  }
  
  static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
  {
  	struct adapter *adapter = dev->priv;
  	int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
  
  	if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
  	    e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
  	    e->tx_pending > MAX_CMDQ_ENTRIES ||
  	    e->rx_pending < MIN_FL_ENTRIES ||
  	    e->rx_jumbo_pending < MIN_FL_ENTRIES ||
  	    e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
  		return -EINVAL;
  
  	if (adapter->flags & FULL_INIT_DONE)
  		return -EBUSY;
  
  	adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
  	adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
  	adapter->params.sge.cmdQ_size[0] = e->tx_pending;
  	adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
  		MAX_CMDQ1_ENTRIES : e->tx_pending;
  	return 0;
  }
  
  static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
  {
  	struct adapter *adapter = dev->priv;
  
  	adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
  	adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
  	adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
  	t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
  	return 0;
  }
  
  static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
  {
  	struct adapter *adapter = dev->priv;
  
  	c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
  	c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
  	c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
  	return 0;
  }
  
  static int get_eeprom_len(struct net_device *dev)
  {
  	struct adapter *adapter = dev->priv;
  
  	return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
  }
  
  #define EEPROM_MAGIC(ap) \
  	(PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
  
  static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
  		      u8 *data)
  {
  	int i;
  	u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
  	struct adapter *adapter = dev->priv;
  
  	e->magic = EEPROM_MAGIC(adapter);
  	for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
  		t1_seeprom_read(adapter, i, (u32 *)&buf[i]);
  	memcpy(data, buf + e->offset, e->len);
  	return 0;
  }
  
  static const struct ethtool_ops t1_ethtool_ops = {
  	.get_settings      = get_settings,
  	.set_settings      = set_settings,
  	.get_drvinfo       = get_drvinfo,
  	.get_msglevel      = get_msglevel,
  	.set_msglevel      = set_msglevel,
  	.get_ringparam     = get_sge_param,
  	.set_ringparam     = set_sge_param,
  	.get_coalesce      = get_coalesce,
  	.set_coalesce      = set_coalesce,
  	.get_eeprom_len    = get_eeprom_len,
  	.get_eeprom        = get_eeprom,
  	.get_pauseparam    = get_pauseparam,
  	.set_pauseparam    = set_pauseparam,
  	.get_rx_csum       = get_rx_csum,
  	.set_rx_csum       = set_rx_csum,
  	.get_tx_csum       = ethtool_op_get_tx_csum,
  	.set_tx_csum       = ethtool_op_set_tx_csum,
  	.get_sg            = ethtool_op_get_sg,
  	.set_sg            = ethtool_op_set_sg,
  	.get_link          = ethtool_op_get_link,
  	.get_strings       = get_strings,
  	.get_stats_count   = get_stats_count,
  	.get_ethtool_stats = get_stats,
  	.get_regs_len      = get_regs_len,
  	.get_regs          = get_regs,
  	.get_tso           = ethtool_op_get_tso,
  	.set_tso           = set_tso,
  };
  
  static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
  {
  	struct adapter *adapter = dev->priv;
  	struct mii_ioctl_data *data = if_mii(req);
  
  	switch (cmd) {
  	case SIOCGMIIPHY:
  		data->phy_id = adapter->port[dev->if_port].phy->addr;
  		/* FALLTHRU */
  	case SIOCGMIIREG: {
  		struct cphy *phy = adapter->port[dev->if_port].phy;
  		u32 val;
  
  		if (!phy->mdio_read)
  			return -EOPNOTSUPP;
  		phy->mdio_read(adapter, data->phy_id, 0, data->reg_num & 0x1f,
  			       &val);
  		data->val_out = val;
  		break;
  	}
  	case SIOCSMIIREG: {
  		struct cphy *phy = adapter->port[dev->if_port].phy;
  
  		if (!capable(CAP_NET_ADMIN))
  		    return -EPERM;
  		if (!phy->mdio_write)
  			return -EOPNOTSUPP;
  		phy->mdio_write(adapter, data->phy_id, 0, data->reg_num & 0x1f,
  			        data->val_in);
  		break;
  	}
  
  	default:
  		return -EOPNOTSUPP;
  	}
  	return 0;
  }
  
  static int t1_change_mtu(struct net_device *dev, int new_mtu)
  {
  	int ret;
  	struct adapter *adapter = dev->priv;
  	struct cmac *mac = adapter->port[dev->if_port].mac;
  
  	if (!mac->ops->set_mtu)
  		return -EOPNOTSUPP;
  	if (new_mtu < 68)
  		return -EINVAL;
  	if ((ret = mac->ops->set_mtu(mac, new_mtu)))
  		return ret;
  	dev->mtu = new_mtu;
  	return 0;
  }
  
  static int t1_set_mac_addr(struct net_device *dev, void *p)
  {
  	struct adapter *adapter = dev->priv;
  	struct cmac *mac = adapter->port[dev->if_port].mac;
  	struct sockaddr *addr = p;
  
  	if (!mac->ops->macaddress_set)
  		return -EOPNOTSUPP;
  
  	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
  	mac->ops->macaddress_set(mac, dev->dev_addr);
  	return 0;
  }
  
  #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  static void vlan_rx_register(struct net_device *dev,
  				   struct vlan_group *grp)
  {
  	struct adapter *adapter = dev->priv;
  
  	spin_lock_irq(&adapter->async_lock);
  	adapter->vlan_grp = grp;
  	t1_set_vlan_accel(adapter, grp != NULL);
  	spin_unlock_irq(&adapter->async_lock);
  }
  #endif
  
  #ifdef CONFIG_NET_POLL_CONTROLLER
  static void t1_netpoll(struct net_device *dev)
  {
  	unsigned long flags;
  	struct adapter *adapter = dev->priv;
  
  	local_irq_save(flags);
  	t1_interrupt(adapter->pdev->irq, adapter);
  	local_irq_restore(flags);
  }
  #endif
  
  /*
   * Periodic accumulation of MAC statistics.  This is used only if the MAC
   * does not have any other way to prevent stats counter overflow.
   */
  static void mac_stats_task(struct work_struct *work)
  {
  	int i;
  	struct adapter *adapter =
  		container_of(work, struct adapter, stats_update_task.work);
  
  	for_each_port(adapter, i) {
  		struct port_info *p = &adapter->port[i];
  
  		if (netif_running(p->dev))
  			p->mac->ops->statistics_update(p->mac,
  						       MAC_STATS_UPDATE_FAST);
  	}
  
  	/* Schedule the next statistics update if any port is active. */
  	spin_lock(&adapter->work_lock);
  	if (adapter->open_device_map & PORT_MASK)
  		schedule_mac_stats_update(adapter,
  					  adapter->params.stats_update_period);
  	spin_unlock(&adapter->work_lock);
  }
  
  /*
   * Processes elmer0 external interrupts in process context.
   */
  static void ext_intr_task(struct work_struct *work)
  {
  	struct adapter *adapter =
  		container_of(work, struct adapter, ext_intr_handler_task);
  
  	t1_elmer0_ext_intr_handler(adapter);
  
  	/* Now reenable external interrupts */
  	spin_lock_irq(&adapter->async_lock);
  	adapter->slow_intr_mask |= F_PL_INTR_EXT;
  	writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
  	writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
  		   adapter->regs + A_PL_ENABLE);
  	spin_unlock_irq(&adapter->async_lock);
  }
  
  /*
   * Interrupt-context handler for elmer0 external interrupts.
   */
  void t1_elmer0_ext_intr(struct adapter *adapter)
  {
  	/*
  	 * Schedule a task to handle external interrupts as we require
  	 * a process context.  We disable EXT interrupts in the interim
  	 * and let the task reenable them when it's done.
  	 */
  	adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
  	writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
  		   adapter->regs + A_PL_ENABLE);
  	schedule_work(&adapter->ext_intr_handler_task);
  }
  
  void t1_fatal_err(struct adapter *adapter)
  {
  	if (adapter->flags & FULL_INIT_DONE) {
  		t1_sge_stop(adapter->sge);
  		t1_interrupts_disable(adapter);
  	}
  	CH_ALERT("%s: encountered fatal error, operation suspended\n",
  		 adapter->name);
  }
  
  static int __devinit init_one(struct pci_dev *pdev,
  			      const struct pci_device_id *ent)
  {
  	static int version_printed;
  
  	int i, err, pci_using_dac = 0;
  	unsigned long mmio_start, mmio_len;
  	const struct board_info *bi;
  	struct adapter *adapter = NULL;
  	struct port_info *pi;
  
  	if (!version_printed) {
  		printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
  		       DRV_VERSION);
  		++version_printed;
  	}
  
  	err = pci_enable_device(pdev);
  	if (err)
  		return err;
  
  	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
  		CH_ERR("%s: cannot find PCI device memory base address\n",
  		       pci_name(pdev));
  		err = -ENODEV;
  		goto out_disable_pdev;
  	}
  
  	if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
  		pci_using_dac = 1;
  
  		if (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
  			CH_ERR("%s: unable to obtain 64-bit DMA for"
  			       "consistent allocations\n", pci_name(pdev));
  			err = -ENODEV;
  			goto out_disable_pdev;
  		}
  
  	} else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
  		CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
  		goto out_disable_pdev;
  	}
  
  	err = pci_request_regions(pdev, DRV_NAME);
  	if (err) {
  		CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
  		goto out_disable_pdev;
  	}
  
  	pci_set_master(pdev);
  
  	mmio_start = pci_resource_start(pdev, 0);
  	mmio_len = pci_resource_len(pdev, 0);
  	bi = t1_get_board_info(ent->driver_data);
  
  	for (i = 0; i < bi->port_number; ++i) {
  		struct net_device *netdev;
  
  		netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
  		if (!netdev) {
  			err = -ENOMEM;
  			goto out_free_dev;
  		}
  
  		SET_MODULE_OWNER(netdev);
  		SET_NETDEV_DEV(netdev, &pdev->dev);
  
  		if (!adapter) {
  			adapter = netdev->priv;
  			adapter->pdev = pdev;
  			adapter->port[0].dev = netdev;  /* so we don't leak it */
  
  			adapter->regs = ioremap(mmio_start, mmio_len);
  			if (!adapter->regs) {
  				CH_ERR("%s: cannot map device registers\n",
  				       pci_name(pdev));
  				err = -ENOMEM;
  				goto out_free_dev;
  			}
  
  			if (t1_get_board_rev(adapter, bi, &adapter->params)) {
  				err = -ENODEV;	  /* Can't handle this chip rev */
  				goto out_free_dev;
  			}
  
  			adapter->name = pci_name(pdev);
  			adapter->msg_enable = dflt_msg_enable;
  			adapter->mmio_len = mmio_len;
  
  			spin_lock_init(&adapter->tpi_lock);
  			spin_lock_init(&adapter->work_lock);
  			spin_lock_init(&adapter->async_lock);
  			spin_lock_init(&adapter->mac_lock);
  
  			INIT_WORK(&adapter->ext_intr_handler_task,
  				  ext_intr_task);
  			INIT_DELAYED_WORK(&adapter->stats_update_task,
  					  mac_stats_task);
  
  			pci_set_drvdata(pdev, netdev);
  		}
  
  		pi = &adapter->port[i];
  		pi->dev = netdev;
  		netif_carrier_off(netdev);
  		netdev->irq = pdev->irq;
  		netdev->if_port = i;
  		netdev->mem_start = mmio_start;
  		netdev->mem_end = mmio_start + mmio_len - 1;
  		netdev->priv = adapter;
  		netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
  		netdev->features |= NETIF_F_LLTX;
  
  		adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
  		if (pci_using_dac)
  			netdev->features |= NETIF_F_HIGHDMA;
  		if (vlan_tso_capable(adapter)) {
  #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  			adapter->flags |= VLAN_ACCEL_CAPABLE;
  			netdev->features |=
  				NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
  			netdev->vlan_rx_register = vlan_rx_register;
  #endif
  
  			/* T204: disable TSO */
  			if (!(is_T2(adapter)) || bi->port_number != 4) {
  				adapter->flags |= TSO_CAPABLE;
  				netdev->features |= NETIF_F_TSO;
  			}
  		}
  
  		netdev->open = cxgb_open;
  		netdev->stop = cxgb_close;
  		netdev->hard_start_xmit = t1_start_xmit;
  		netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
  			sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
  		netdev->get_stats = t1_get_stats;
  		netdev->set_multicast_list = t1_set_rxmode;
  		netdev->do_ioctl = t1_ioctl;
  		netdev->change_mtu = t1_change_mtu;
  		netdev->set_mac_address = t1_set_mac_addr;
  #ifdef CONFIG_NET_POLL_CONTROLLER
  		netdev->poll_controller = t1_netpoll;
  #endif
  #ifdef CONFIG_CHELSIO_T1_NAPI
  		netdev->weight = 64;
  		netdev->poll = t1_poll;
  #endif
  
  		SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
  	}
  
  	if (t1_init_sw_modules(adapter, bi) < 0) {
  		err = -ENODEV;
  		goto out_free_dev;
  	}
  
  	/*
  	 * The card is now ready to go.  If any errors occur during device
  	 * registration we do not fail the whole card but rather proceed only
  	 * with the ports we manage to register successfully.  However we must
  	 * register at least one net device.
  	 */
  	for (i = 0; i < bi->port_number; ++i) {
  		err = register_netdev(adapter->port[i].dev);
  		if (err)
  			CH_WARN("%s: cannot register net device %s, skipping\n",
  				pci_name(pdev), adapter->port[i].dev->name);
  		else {
  			/*
  			 * Change the name we use for messages to the name of
  			 * the first successfully registered interface.
  			 */
  			if (!adapter->registered_device_map)
  				adapter->name = adapter->port[i].dev->name;
  
  			__set_bit(i, &adapter->registered_device_map);
  		}
  	}
  	if (!adapter->registered_device_map) {
  		CH_ERR("%s: could not register any net devices\n",
  		       pci_name(pdev));
  		goto out_release_adapter_res;
  	}
  
  	printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
  	       bi->desc, adapter->params.chip_revision,
  	       adapter->params.pci.is_pcix ? "PCIX" : "PCI",
  	       adapter->params.pci.speed, adapter->params.pci.width);
  
  	/*
  	 * Set the T1B ASIC and memory clocks.
  	 */
  	if (t1powersave)
  		adapter->t1powersave = LCLOCK;	/* HW default is powersave mode. */
  	else
  		adapter->t1powersave = HCLOCK;
  	if (t1_is_T1B(adapter))
  		t1_clock(adapter, t1powersave);
  
  	return 0;
  
  out_release_adapter_res:
  	t1_free_sw_modules(adapter);
  out_free_dev:
  	if (adapter) {
  		if (adapter->regs)
  			iounmap(adapter->regs);
  		for (i = bi->port_number - 1; i >= 0; --i)
  			if (adapter->port[i].dev)
  				free_netdev(adapter->port[i].dev);
  	}
  	pci_release_regions(pdev);
  out_disable_pdev:
  	pci_disable_device(pdev);
  	pci_set_drvdata(pdev, NULL);
  	return err;
  }
  
  static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
  {
  	int data;
  	int i;
  	u32 val;
  
  	enum {
  		S_CLOCK = 1 << 3,
  		S_DATA = 1 << 4
  	};
  
  	for (i = (nbits - 1); i > -1; i--) {
  
  		udelay(50);
  
  		data = ((bitdata >> i) & 0x1);
  		__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  
  		if (data)
  			val |= S_DATA;
  		else
  			val &= ~S_DATA;
  
  		udelay(50);
  
  		/* Set SCLOCK low */
  		val &= ~S_CLOCK;
  		__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  
  		udelay(50);
  
  		/* Write SCLOCK high */
  		val |= S_CLOCK;
  		__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  
  	}
  }
  
  static int t1_clock(struct adapter *adapter, int mode)
  {
  	u32 val;
  	int M_CORE_VAL;
  	int M_MEM_VAL;
  
  	enum {
  		M_CORE_BITS	= 9,
  		T_CORE_VAL	= 0,
  		T_CORE_BITS	= 2,
  		N_CORE_VAL	= 0,
  		N_CORE_BITS	= 2,
  		M_MEM_BITS	= 9,
  		T_MEM_VAL	= 0,
  		T_MEM_BITS	= 2,
  		N_MEM_VAL	= 0,
  		N_MEM_BITS	= 2,
  		NP_LOAD		= 1 << 17,
  		S_LOAD_MEM	= 1 << 5,
  		S_LOAD_CORE	= 1 << 6,
  		S_CLOCK		= 1 << 3
  	};
  
  	if (!t1_is_T1B(adapter))
  		return -ENODEV;	/* Can't re-clock this chip. */
  
  	if (mode & 2)
  		return 0;	/* show current mode. */
  
  	if ((adapter->t1powersave & 1) == (mode & 1))
  		return -EALREADY;	/* ASIC already running in mode. */
  
  	if ((mode & 1) == HCLOCK) {
  		M_CORE_VAL = 0x14;
  		M_MEM_VAL = 0x18;
  		adapter->t1powersave = HCLOCK;	/* overclock */
  	} else {
  		M_CORE_VAL = 0xe;
  		M_MEM_VAL = 0x10;
  		adapter->t1powersave = LCLOCK;	/* underclock */
  	}
  
  	/* Don't interrupt this serial stream! */
  	spin_lock(&adapter->tpi_lock);
  
  	/* Initialize for ASIC core */
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val |= NP_LOAD;
  	udelay(50);
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  	udelay(50);
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val &= ~S_LOAD_CORE;
  	val &= ~S_CLOCK;
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  	udelay(50);
  
  	/* Serial program the ASIC clock synthesizer */
  	bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
  	bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
  	bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
  	udelay(50);
  
  	/* Finish ASIC core */
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val |= S_LOAD_CORE;
  	udelay(50);
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  	udelay(50);
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val &= ~S_LOAD_CORE;
  	udelay(50);
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  	udelay(50);
  
  	/* Initialize for memory */
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val |= NP_LOAD;
  	udelay(50);
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  	udelay(50);
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val &= ~S_LOAD_MEM;
  	val &= ~S_CLOCK;
  	udelay(50);
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  	udelay(50);
  
  	/* Serial program the memory clock synthesizer */
  	bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
  	bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
  	bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
  	udelay(50);
  
  	/* Finish memory */
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val |= S_LOAD_MEM;
  	udelay(50);
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  	udelay(50);
  	__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
  	val &= ~S_LOAD_MEM;
  	udelay(50);
  	__t1_tpi_write(adapter, A_ELMER0_GPO, val);
  
  	spin_unlock(&adapter->tpi_lock);
  
  	return 0;
  }
  
  static inline void t1_sw_reset(struct pci_dev *pdev)
  {
  	pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
  	pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
  }
  
  static void __devexit remove_one(struct pci_dev *pdev)
  {
  	struct net_device *dev = pci_get_drvdata(pdev);
  	struct adapter *adapter = dev->priv;
  	int i;
  
  	for_each_port(adapter, i) {
  		if (test_bit(i, &adapter->registered_device_map))
  			unregister_netdev(adapter->port[i].dev);
  	}
  
  	t1_free_sw_modules(adapter);
  	iounmap(adapter->regs);
  
  	while (--i >= 0) {
  		if (adapter->port[i].dev)
  			free_netdev(adapter->port[i].dev);
  	}
  
  	pci_release_regions(pdev);
  	pci_disable_device(pdev);
  	pci_set_drvdata(pdev, NULL);
  	t1_sw_reset(pdev);
  }
  
  static struct pci_driver driver = {
  	.name     = DRV_NAME,
  	.id_table = t1_pci_tbl,
  	.probe    = init_one,
  	.remove   = __devexit_p(remove_one),
  };
  
  static int __init t1_init_module(void)
  {
  	return pci_register_driver(&driver);
  }
  
  static void __exit t1_cleanup_module(void)
  {
  	pci_unregister_driver(&driver);
  }
  
  module_init(t1_init_module);
  module_exit(t1_cleanup_module);
  